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July 25, 2014

July 25, 2014

Posted by **Coug** on Sunday, December 6, 2009 at 11:11am.

Problem: log6 7 - log6 x = 4

Choose one answer.

a. 7/24

b. 7/1296

c. 7/4

d. 1296/7

I am so lost, can you please help me understand this? I need to know how to do this, so please don't just give me the answer--explain--thanks in advance.

- Math -
**Reiny**, Sunday, December 6, 2009 at 12:11pmYou will have to know the basic rules of logs

log(A/B) = logA - logB comes into play here

log6 7 - log6 x = 4

log_{6}(7/x) = 4

by definition of logs

6^4 = 7/x

1296 = 7/x

x = 7/1296

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